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@with tant' gamut @frn GEORGE S. CURTIS, OF CHICAGO, ILLINOIS, ASSIGNOR TO HIMSELF AND ELLIS G. L. FAXON, OF SAME, PLACE.

Letters .Patent No. 65,549, dated June 11, 1867.

IMPROVEMENT IN ATTAGHING DRAUGHT T0 VEHICLES.

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TO ALL WHOM IT MAY CON CERN:

Be it known that I, GEORGE S. CURTIS, of Chicago, in thecounty of Cook, and State of Illinois, have invented a new and useful Improvement in Attaching Draught to Vehicles; and I do hereby declare and make known that the following is a full, clear, and exact description of my invention, reference being had to the accompanying drawings, and the letters and figures marked thereon, which form partwoi` this speciiication.

My said invention consists in attaching the double-tree or single-tree to the draught-pole or shafts of vehicles, by means of a rubber or other suitable spring', so that the pressure onthe horses shoulders may be applied gradually in starting the vehicle, and whereby the horses may be able to assume a bracing 'position upon the ground before the vehicle itself is started, whereby their strength is very much more advantageously expended, enabling them to draw a much heavier load, or the same load with much greater ease than could be accomplished with the ordinary unyielding mode of attaching the draught.

To enable those skilled in the art to: understand how to construct and use my invention, I will proceed to describe the same wit-h particularity, making reference, in so doing, to the aforesaid drawings, in which- Figure 1 represents a plan or top view of my invention.

Figure 2, a longitudinal Vertical central section thereof; and

Figure 3, a transverse section at the line :1: in fig. 2.

Similar letters of reference in the several figures denote the saine parts of my invention.

A represents the draught-pole, upon which is secured by screws or bolts a an iron bed-plate, B, having vertical arms, as shown, and a. longitudinal slot marked b. Through the front arm B a rod, C, passes, having n square format D, to prevent its turning in its support. The said rod extends back through the rear arm, as shown, and has arranged upon it a series of rubber blocks, G, or any other suitable spring, secured in place by the uut N and washer J, as shown. The double-tree M is attached to the rod C by means of the bolt H and jaw E, the bolt having a head, 7i, which secures it in the slot t, as shown. l

Thus, When the horses start, the draught is first applied upon the rear end of the rubber spring G, which yields to the pressure with gradually diminishing compression, until the vehicle commences to move.

I do not claim any device for equalizing the draught upon the horses other than is obtained by the ordinary whiile-tree.

I claim the combination of the ordinary whifile-tree M and pole A with the bed-plate B, the jaw E, the rod C, the rubber spring G, and the washer d', and nut N, for the purpose of tightening or loosening the spring G, when all are constructed and operate substantially as and for the purposes herein specified.

GEO. S. CURTIS.

Witnesses:

W. E. MAnns, E. G. L. FAXON. 

